JPH0718668Y2 - Plate unloading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a plate unloading device that carries a plate used for printing, for example, newspapers out of a conveying device and horizontally moves it downward. .

(Prior Art) Generally, as a plate unloading device for carrying out a printing plate for newspaper printing from a conveying device and transferring it downward in a horizontal posture, for example, it has been disclosed in Japanese Utility Model Publication No. 63-37669. The thing of the structure is known.

That is, the plate unloading device is a stopper device that stops the plate that is conveyed in a hanging state by a trolley conveyor type transfer device at the unloading position, a chute provided in an inclined position at the unloading position, and a chute. A horizontal belt conveyor provided at the end side of the belt conveyor, an openable and closable plate holding member provided continuously with the chute above the belt conveyor, and a rotary shelf elevator provided at the end portion of the belt conveyor. Has been done.

Thus, the plate that has been conveyed in the hanging state by the normally-closed type clamping mechanism of the conveying device is stopped at the unloading position by the stopper device, and the clamping mechanism is opened and opened at this position. To be done. The released printing plate drops on the chute, slides on the chute, is fed to the printing plate holding member, and drops on the belt conveyor by opening the printing plate holding member.
After that, the plate is sent to the carousel elevator in a horizontal posture by the belt conveyor, and is conveyed downward in a horizontal posture by the elevator.

(Problems to be solved by the invention) By the way, the plate unloading device changes the plate that has been conveyed in a drooping position by the transfer device to a horizontal position and sends it to the elevator in this position. A chute, belt conveyor, etc. must be installed between the equipment and the elevator. As a result, the apparatus itself becomes complicated and the cost rises, and the assembly becomes complicated.

Further, since the printing plate slides on the chute while being sent from the conveying device to the elevator or is received by the printing plate holding member, the printing plate may be damaged by the impact at that time. There is.

The present invention was devised in order to solve the above problems, and the purpose thereof is to simplify the structure and assembly and reduce the cost, and to prevent the plate from being damaged. It is to provide a plate unloading device that can perform appropriate transfer.

(Means for Solving the Problems) In order to achieve the above object, a plate unloading device according to the present invention is a stopper for stopping a plate, which is conveyed in a hanging state by a conveying device, at an unloading position. A plate unloading device comprising a device and a rotary shelf elevator that is arranged below the unloading position and receives the plate opened at the unloading position and transfers it downward in a horizontal posture. The rotary shelf type elevator is disposed below the unloading position and vertically spaced apart from each other, and is spun around the sprocket rotating around an axis parallel to the plate transport path and is wound around the sprocket above and below the sprocket. An endless chain that is driven around and a plurality of receiving shelves that are provided at regular intervals on the chain and that directly receive the plate opened at the unloading position at the unloading position and transfer it downward in a horizontal posture. And a plate for each of the above receiving shelves It is characterized in that a plurality of synthetic cushion materials made of synthetic rubber or plastic are attached to the surface to be placed.

(Operation) The plate is conveyed in a suspended state, with its upper end portion being clamped by the clamping mechanism of the transport device.

When the transported printing plate reaches the unloading position, the holding mechanism of the transporting device opens and the stopper device operates to stop the printing plate at the unloading position. As a result, only the clamping mechanism moves away from the unloading position, and the printing plate is released.

The released printing plate is received by the receiving rack of the carousel elevator waiting in the unloading position.

When the printing plate is placed on the receiving rack, the receiving rack lowers intermittently and transfers the printing plate downward in a horizontal posture.

The printing plate transferred downward is extracted from the receiving shelf by an appropriate method.

Then, the receiving rack that has been emptied by extracting the printing plates sequentially rises and returns to the unloading position, and waits at this position for a certain period of time.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

1 to 3 show a printing plate unloading device according to an embodiment of the present invention, which is installed at a printing plate unloading position of a conveying device 1 and includes a stopper device 2 and a rotary shelf type elevator 3. Its main part is composed of and.

The transfer device 1 is provided between a position near the plate making machine and a position near the rotary press, and transfers the printing plate 4 produced by the plate making machine to the rotary press side.

In the present embodiment, a conventionally known trolley conveyor type is used as the transfer device 1, which is a trolley 5 installed near the ceiling and a chain 6 which is guided by the trolley 5 and rotates. And provided on the chain 6 at appropriate intervals,
It is composed of a normally closed type clamping mechanism 7 or the like that can clamp one end of the printing plate 4.

At the unloading position of the plate 4 in the transport device 1, an opening mechanism 10 including an unloading cam 8 for appropriately opening the holding mechanism 7 and a fluid pressure cylinder 9 and the holding mechanism 7 do not swing. And a guide mechanism 11 for guiding each of them, and these have the same structure as a conventionally known one.

On the other hand, the plate 4 transported by the transport device 1 has upper and lower end portions bent, and the folded portion at the upper end is sandwiched by the sandwiching mechanism 7 and transported in a suspended state.
Further, the printing plates 4 are usually conveyed by the conveying device 1 in a state of being stacked on two sheets.

It should be noted that the plate 4 that has been conveyed in a hanging state by the conveying device 1 in the vicinity of the unloading position is gradually inclined and supplied to the unloading position, and the plate 4 that is not carried out is returned to the hanging state again. A guide 12 is provided, which is provided on the left side (left side in FIG. 1) of the unloading position and gradually tilts backward (upper side in FIG. 3) as it approaches the unloading position. A guide 12a that is located on the right side of the unloading position and a horizontal guide 12b that is provided on the right side of the unloading position and that gradually inclines forward as it moves away from the unloading position. It is provided.

The stopper device 2 is provided above the frame body 13 and appropriately stops the printing plate 4 conveyed by the conveying device 1 at the unloading position.

Specifically, as shown in FIG. 4 and FIG. 5, the stopper device 2 is provided on a pillar 14 standing upright on the upper surface of the frame main body 13 at a position near the starting end of the delivery side guide 12b. A bearing 15 provided at the upper and lower positions of 14, a support shaft 16 axially supported by the bearing 15, and fitted at both ends of the support shaft 16 so as to be capable of appearing and retracting in the conveyance path of the plate 4 and an edge of the plate 4. And a fluid pressure cylinder 18 for rotating the support shaft 16 so that the stopper piece 17 can be retracted into the transport path of the printing plate 4 and the like.

In FIGS. 4 and 5, 19 is a guide plate which is provided inside the column 14 and which guides the plate 4 favorably when it is moved downward at the unloading position, and 20 is also a guide plate. It is a pipe.

The carousel elevator 3 is arranged below the unloading position, receives the plate 4 opened at the unloading position in an inclined posture, and transfers it downward in a horizontal posture.

Specifically, the rotary shelf elevator 3 includes a bearing 21 provided on the upper surface of the frame body 13 below the unloading position, a drive shaft 22 that is axially supported by the bearing 21, and extends along the conveyance path of the plate 4, and a frame body.
The bearing 23 provided in the lower part of 13 and the drive shaft supported by the bearing 23.
A driven shaft 24 parallel to the drive shaft 22, a pair of drive side sprockets 25 fitted to the drive shaft 22 at regular intervals, and a driven side sprocket 26 fitted to the driven shaft 24 and facing the drive side sprocket 25. , The left and right chains 27 wound around the upper and lower sprockets 25 and 26, respectively, and the plate 4 which is provided at regular intervals on the left and right chains 27 and opened at the unloading position, is received in a tilted posture and horizontally A plurality of receiving shelves 28 that move downward in a posture are interlockingly connected to the drive shaft 22, and the left and right chains 27 are synchronously and intermittently driven to rotate so that each receiving shelf 28 stops at a predetermined position for a certain time. Further, it is composed of a drive device 29 and the like for feeding the receiving shelves 28 at a pitch.

Each of the receiving shelves 28 has a rectangular plate shape, one end of which is fixed to the chain 27 through the angle member 30 at a substantially right angle, and the surface on which the printing plate 4 is mounted has a plurality of strips. A cushion material 31 made of synthetic rubber, plastic, or the like is attached.
The cushion material 31 absorbs the impact at the time of receiving the opened printing plate 4, and at the time of taking out the printing plate 4 from the receiving rack 28, the frictional resistance between the two is reduced to take out the printing plate 4. Is to facilitate.

Furthermore, each receiving rack 28 is pitch-fed by the drive device 29 and the chain 27, etc. so as to stop in a tilted position for a certain period of time between the end of the approach side guide 12a and the start end of the delivery side guide 12b, The inclination angle of the receiving rack 28 at that time is positioned so that the printing plate 4 guided to the unloading position in the inclined posture by the approach-side guide 12a rides on the receiving rack 28 in the inclined posture in the same posture.

A stocker 32 is installed at both sides of the rotary shelf type elevator 3, and a stocker 32 is received from the shelf 3 by the elevator 3 and is received from the shelf 28 so that a certain amount can be taken out. It is something to store.

Specifically, the stockers 32 are provided at both side positions of the elevator 3 and have a plurality of shelves that can face the receiving shelves 28 on the descending side.
Assorting shelves 34 provided with 33 at regular intervals in the vertical direction, a receiving box 35 for plate storage that is provided in each shelf 33 so that it can be pulled out toward the front, and an upper side is opened, and each receiving box 35 The transfer device (not shown), which is provided at the upper position and transfers the plate 4 on the receiving shelf 28 into the receiving box 35, is configured.

The transport device 1, the plate unloading device, and the like are controlled by a computer, and automatically operate based on the program and data.

Next, the operation of the plate unloading device will be described.

The plate 4 has an upper end portion nipped by the nip mechanism 7 of the feeding device 1 and is fed in a hanging state.

The conveyed printing plate 4 is guided by the approach-side guide 12a so as to be gradually inclined from the hanging state, and reaches the receiving rack 28 in the inclined position at the unloading position.

If the printing plate 4 is not carried out here, the opening mechanism 10 and the stopper device 2 do not operate, and the printing plate 4 that has reached the receiving shelf 28 slides out of the receiving shelf 28 and is ejected from here. It is guided by the side guide 12b and conveyed again in a suspended state.

When the printing plate 4 is carried out, the opening mechanism 10 operates to open the holding mechanism 7, and the stopper device 2 operates to cause the stopper piece 17 to project into the transport path of the printing plate 4,
The printing plate 4 is stopped at the unloading position. As a result, only the sandwiching mechanism 7 leaves the place, and the printing plate 4 is opened.

The released printing plate 4 drops slightly, and the receiving shelf 28 in an inclined posture is used.
Received by.

When the printing plate 4 is placed on the receiving rack 28, the receiving rack 28 is intermittently lowered, and the printing plate 4 is transferred downward in a horizontal posture.

The printing plate 4 transferred downward is transferred from the receiving shelf 28 into the receiving box 35 by the transfer device when the receiving shelf 28 on which the plate 4 is placed stops at a predetermined lateral position of the receiving box 35. .

In this way, the printing plates 4 opened at the unloading position are sequentially stored in the receiving boxes 35 in a stacked state.

Then, the stored printing plates 4 are received by the operator in the receiving box 35.
It is taken out from the inside and installed on the plate cylinder of the rotary press.

On the other hand, the receiving rack 28 that has been emptied by extracting the printing plate 4 sequentially rises and returns to the unloading position, and waits at this position for a certain period of time.

In the above embodiment, the plate guide 12 is provided, the plate 4 conveyed in the hanging state is tilted and opened at the unloading position, and this is received by the receiving rack 28 of the rotary rack elevator 3. However, in another embodiment, the printing plate guide 12 is omitted, the printing plate 4 is suspended and opened at the unloading position, and this is received by the receiving rack 28 of the elevator 3. You may hand it over.

In the above embodiment, the stopper device 2 is the bearing
Although it is composed of 15, the support shaft 16, the stopper piece 17, the fluid pressure cylinder 18, etc., it is not limited to this, and may have any structure as long as the plate 4 can be stopped at the unloading position. Is also good. For example, the stopper piece 17 may be directly connected to the fluid pressure cylinder 18.

In addition, in the above embodiment, the carousel elevator 3
Although the stockers 32 are provided at both side positions of the plate, the plate 4 transferred downward by the receiving rack 28 is automatically taken out from the receiving rack 28 and stored, but in another embodiment, the printing plate 4 is stored. Alternatively, the plate 4 may be manually removed from the receiving rack 28.

(Effect of the Invention) As described above, in the plate unloading device of the present invention, the rotary shelf type elevator is arranged below the plate unloading position, and the plate that has been conveyed by the conveying device is a stopper device. Since the printing plate released at this position is stopped by the unloading position by the receiving rack of the rotary shelf type elevator and is transferred downward in a horizontal position, the conventional printing plate described at the beginning It is not necessary to provide a chute, a belt conveyor, or the like between the transfer device and the elevator unlike the unloading device. As a result, the plate unloading device of the present invention has a simpler structure as compared with the conventional device, and can reduce costs and simplify assembly.

In addition, since the plate is transferred directly from the transport device to the receiving rack of the rotary shelf type elevator, there is no need to slide the plate on the chute like in the conventional plate unloading device, and the plate is transported. There is also no risk of the printing plate being damaged when it is transferred from the device to the receiving rack. As a result, the plate can be properly transferred.

Further, since a plurality of synthetic rubber or plastic cushion members are attached to the surface of the receiving shelf on which the printing plate is placed, it is possible to reduce the impact at the time of receiving the printing plate. . As a result, it is possible to further prevent damage to the printing plate. However, if multiple cushions are attached to the receiving shelf, the contact area with the printing plate will be reduced, and the frictional resistance between the two when taking out the printing plate from the receiving shelf will be small, and the printing plate can be taken out smoothly and smoothly. Easy to do.

[Brief description of drawings]

FIG. 1 is a schematic front view of a plate unloading apparatus according to an embodiment of the present invention, FIG. 2 is a schematic right side view of the same, FIG. 3 is a schematic plan view of the same, and FIG. FIG. 5 is a side view and FIG. 5 is a sectional view taken along line VV of FIG. 1 is a conveying device, 2 is a stopper device, 3 is a rotary shelf type elevator, 4 is a printing plate, 25 and 26 are sprockets, 27 is a chain, and 28 is a receiving rack.

Claims (1)

[Scope of utility model registration request] 1. A stopper device (2) for stopping a printing plate (4) conveyed in a hanging state by a conveying device (1) at an unloading position, and an unloading device provided below the unloading position. A plate unloading device comprising a rotary shelf type elevator (3) for receiving a plate (4) opened at a position and transferring it downward in a horizontal posture, said rotary shelf type elevator (3)
Are sprockets (25), (26), which are arranged below the unloading position and are vertically separated from each other, and which rotate around an axis parallel to the transport path of the plate (4), and the upper and lower sprockets (25). ，
An endless chain (27) wound around (26) and driven to rotate intermittently, and a plate (4) provided at regular intervals on the chain (27) and opened at the unloading position are removed. It has a plurality of receiving shelves (28) for directly receiving it at the loading position and transferring it downward in a horizontal posture. The receiving shelves (28) are combined on the surface on which the printing plate (4) is placed. A plate unloading device comprising a plurality of rubber or plastic cushion members (31) attached.